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diff --git a/172/CH7/EX7.1/ex1.sce b/172/CH7/EX7.1/ex1.sce
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+//example 1
+//rate of fuel consumption
+clear
+clc
+W=136*0.7355 //output of automobile engine in kW
+neng=0.3 //thermal efficiency of automobile engine
+Qh=W/neng //energy output of fuel in kW
+Ql=Qh-W //total rate of energy rejected to the ambient
+qh=35000 //energy output of fuel in kJ/kg
+m=Qh/qh //rate of fuel consumption in kg/s
+printf("\n hence,total rate of energy rejected is Ql=%.0f kW.\n",Ql) 
+printf("\n and rate of fuel consumption is m=%.4f kg/s.\n",m)
+\ No newline at end of file